Take the "A" Train

Recording by Hungarian Jazz Trombone Company.

Recording identifiers

ISRC
HUA150601501
CopyrightID (CopyrightChains transaction hash)
0x58dda36e9271995891cfabc19ea75d63b41e7e84840e3ca73341809e47149516
Copyright registration time
2026-06-08T06:23:53+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-06-13T13:32:09Z
Bitcoin block
953520
Canonical record hash
sha256:139cd1875e5406ee980eb11335b39411fab63f14878519c23e0943d13cc40284

What this proof establishes

This recording belongs to ProofProfile's historical evidence base derived from the pre-2022 AcousticBrainz and MusicBrainz corpus. ISRC is the stable recording-level bridge from that source corpus to the authoritative cc-db-prod track record.

CopyrightChains and Bitcoin OpenTimestamps make the exact committed record independently verifiable today. The cryptographic proof does not by itself establish authorship or ownership of the underlying recording.

Read the complete pre-generative-AI provenance and verification method.